I find that the ACM radar modes work OK in the DS F18C - slower locking, narrower acquisition fields, and more realistic than in the 'perfect-magic' FC3 aircraft - but they are all short range only, limited to ~5 nm. The AIM-7 is supposed to be a BVR missile, but I can't get it to lock on at more than 5 miles. If that's the realistic performance, then I'd rather be using an all-aspect AIM-9 which is lighter, cheaper, more reliable, and most importantly - fire-and-forget.